If you see Hong Kong from the mainland of China and desire to come back to the mainland, you're require a visa that enables you to earn a second entry into China. You will have to submit an application for a Visitor in Transit visa if you will be going through UK border control but leaving the UK within two days. The visa can be bought at the point of entry into any one of these nations. Any other passenger who does want to leave the airport will require a UAE entry permit. That means you need to contact the embassy for details. USCIS will earn a provisional determination as to whether the kid appears to fulfill the definition of a Convention adoptee and will likely be qualified to enter and remain in america.